Snapped a few pics with my phone after getting my V1's put in on my xdrive. The rear can go down a lot more but with the oem M3 wheels and the aggressive offsets, it's pretty much as low it can go without rubbing

Yah kw v1 are awesome I actually think the ride comfort is better than stock suspension there are no more bottoming out bangs the coils absorb the bump like it is supposed to. And handling is great especially at higher speeds